[Sidrat2006]

Even if you're not like that normally, the house set up will mean you'll have to slag people off behind their back in the diary room or to other people. If you don't have a vent every so often, there'll be a stress zit the size of a second head on your shoulder within two weeks.

Some people find it easier to talk about the shortcomings of other people than others. Is it a fault? Don't know the answer to that but it does make good tv, which is why BB has been going for seven years.